TM_SAFE
bool_t
TMheap_insert ( heap_t* heapPtr, void* dataPtr)
{
long size = (long)TM_SHARED_READ(heapPtr->size);
long capacity = (long)TM_SHARED_READ(heapPtr->capacity);
if ((size + 1) >= capacity) {
long newCapacity = capacity * 2;
void** newElements = (void**)TM_MALLOC(newCapacity * sizeof(void*));
if (newElements == NULL) {
return FALSE;
}
TM_SHARED_WRITE(heapPtr->capacity, newCapacity);
long i;
void** elements = (void **)TM_SHARED_READ_P(heapPtr->elements);
for (i = 0; i <= size; i++) {
newElements[i] = (void*)TM_SHARED_READ_P(elements[i]);
}
free(heapPtr->elements);
TM_SHARED_WRITE_P(heapPtr->elements, newElements);
}
size++;
TM_SHARED_WRITE(heapPtr->size, size);
void** elements = (void**)TM_SHARED_READ_P(heapPtr->elements);
TM_SHARED_WRITE_P(elements[size], dataPtr);
siftUp(heapPtr, size);
return TRUE;
}
/* =============================================================================
* TMqueue_isEmpty
* =============================================================================
*/
bool_t
TMqueue_isEmpty (TM_ARGDECL queue_t* queuePtr)
{
long pop = (long)TM_SHARED_READ(queuePtr->pop);
long push = (long)TM_SHARED_READ(queuePtr->push);
long capacity = (long)TM_SHARED_READ(queuePtr->capacity);
return (((pop + 1) % capacity == push) ? TRUE : FALSE);
}
/* =============================================================================
* TMqueue_push
* =============================================================================
*/
bool_t
TMqueue_push (TM_ARGDECL queue_t* queuePtr, void* dataPtr)
{
long pop = (long)TM_SHARED_READ(queuePtr->pop);
long push = (long)TM_SHARED_READ(queuePtr->push);
long capacity = (long)TM_SHARED_READ(queuePtr->capacity);
assert(pop != push);
/* Need to resize */
long newPush = (push + 1) % capacity;
if (newPush == pop) {
long newCapacity = capacity * QUEUE_GROWTH_FACTOR;
void** newElements = (void**)TM_MALLOC(newCapacity * sizeof(void*));
if (newElements == NULL) {
return FALSE;
}
long dst = 0;
void** elements = (void**)TM_SHARED_READ_P(queuePtr->elements);
if (pop < push) {
long src;
for (src = (pop + 1); src < push; src++, dst++) {
newElements[dst] = (void*)TM_SHARED_READ_P(elements[src]);
}
} else {
long src;
for (src = (pop + 1); src < capacity; src++, dst++) {
newElements[dst] = (void*)TM_SHARED_READ_P(elements[src]);
}
for (src = 0; src < push; src++, dst++) {
newElements[dst] = (void*)TM_SHARED_READ_P(elements[src]);
}
}
TM_FREE(elements);
TM_SHARED_WRITE_P(queuePtr->elements, newElements);
TM_SHARED_WRITE(queuePtr->pop, newCapacity - 1);
TM_SHARED_WRITE(queuePtr->capacity, newCapacity);
push = dst;
newPush = push + 1; /* no need modulo */
}
void** elements = (void**)TM_SHARED_READ_P(queuePtr->elements);
TM_SHARED_WRITE_P(elements[push], dataPtr);
TM_SHARED_WRITE(queuePtr->push, newPush);
return TRUE;
}
/* =============================================================================
* addReservation
* -- If 'num' > 0 then add, if < 0 remove
* -- Adding 0 seats is error if does not exist
* -- If 'price' < 0, do not update price
* -- Returns TRUE on success, else FALSE
* =============================================================================
*/
bool_t
addReservation (TM_ARGDECL MAP_T* tablePtr, long id, long num, long price)
{
reservation_t* reservationPtr;
reservationPtr = (reservation_t*)TMMAP_FIND(tablePtr, id);
if (reservationPtr == NULL) {
/* Create new reservation */
if (num < 1 || price < 0) {
return FALSE;
}
reservationPtr = RESERVATION_ALLOC(id, num, price);
assert(reservationPtr != NULL);
TMMAP_INSERT(tablePtr, id, reservationPtr);
} else {
/* Update existing reservation */
if (!RESERVATION_ADD_TO_TOTAL(reservationPtr, num)) {
return FALSE;
}
if ((long)TM_SHARED_READ(reservationPtr->numTotal) == 0) {
bool_t status = TMMAP_REMOVE(tablePtr, id);
if (status == FALSE) {
TM_RESTART();
}
RESERVATION_FREE(reservationPtr);
} else {
RESERVATION_UPDATE_PRICE(reservationPtr, price);
}
}
return TRUE;
}
/* =============================================================================
* TMlist_insert
* -- Return TRUE on success, else FALSE
* =============================================================================
*/
bool_t
TMlist_insert (TM_ARGDECL list_t* listPtr, void* dataPtr)
{
list_node_t* prevPtr;
list_node_t* nodePtr;
list_node_t* currPtr;
prevPtr = TMfindPrevious(TM_ARG listPtr, dataPtr);
currPtr = (list_node_t*)TM_SHARED_READ_P(prevPtr->nextPtr);
#ifdef LIST_NO_DUPLICATES
if ((currPtr != NULL) &&
listPtr->compare(currPtr->dataPtr, dataPtr) == 0) {
return FALSE;
}
#endif
nodePtr = TMallocNode(TM_ARG dataPtr);
if (nodePtr == NULL) {
return FALSE;
}
nodePtr->nextPtr = currPtr;
TM_SHARED_WRITE_P(prevPtr->nextPtr, nodePtr);
TM_SHARED_WRITE(listPtr->size, (TM_SHARED_READ(listPtr->size) + 1));
return TRUE;
}
/* =============================================================================
* TMhashtable_insert
* =============================================================================
*/
bool_t
TMhashtable_insert (TM_ARGDECL
hashtable_t* hashtablePtr, void* keyPtr, void* dataPtr)
{
long numBucket = hashtablePtr->numBucket;
long i = hashtablePtr->hash(keyPtr) % numBucket;
pair_t findPair;
findPair.firstPtr = keyPtr;
pair_t* pairPtr = (pair_t*)TMLIST_FIND(hashtablePtr->buckets[i], &findPair);
if (pairPtr != NULL) {
return FALSE;
}
pair_t* insertPtr = TMPAIR_ALLOC(keyPtr, dataPtr);
if (insertPtr == NULL) {
return FALSE;
}
/* Add new entry */
if (TMLIST_INSERT(hashtablePtr->buckets[i], insertPtr) == FALSE) {
TMPAIR_FREE(insertPtr);
return FALSE;
}
#ifdef HASHTABLE_SIZE_FIELD
long newSize = TM_SHARED_READ(hashtablePtr->size) + 1;
assert(newSize > 0);
TM_SHARED_WRITE(hashtablePtr->size, newSize);
#endif
return TRUE;
}
/* =============================================================================
* customer_removeReservationInfo
* -- Returns TRUE if success, else FALSE
* =============================================================================
*/
bool_t
customer_removeReservationInfo (TM_ARGDECL
customer_t* customerPtr,
reservation_type_t type, long id)
{
reservation_info_t findReservationInfo;
findReservationInfo.type = type;
findReservationInfo.id = id;
/* price not used to compare reservation infos */
list_t* reservationInfoListPtr =
(list_t*)TM_SHARED_READ(customerPtr->reservationInfoListPtr);
reservation_info_t* reservationInfoPtr =
(reservation_info_t*)TMLIST_FIND(reservationInfoListPtr,
&findReservationInfo);
if (reservationInfoPtr == NULL) {
return FALSE;
}
bool_t status = TMLIST_REMOVE(reservationInfoListPtr,
(void*)&findReservationInfo);
if (status == FALSE) {
TM_RESTART();
}
RESERVATION_INFO_FREE(reservationInfoPtr);
return TRUE;
}
/* =============================================================================
* TMhashtable_remove
* -- Returns TRUE if successful, else FALSE
* =============================================================================
*/
bool_t
TMhashtable_remove (TM_ARGDECL hashtable_t* hashtablePtr, void* keyPtr)
{
long numBucket = hashtablePtr->numBucket;
long i = hashtablePtr->hash(keyPtr) % numBucket;
list_t* chainPtr = hashtablePtr->buckets[i];
pair_t* pairPtr;
pair_t removePair;
removePair.firstPtr = keyPtr;
pairPtr = (pair_t*)TMLIST_FIND(chainPtr, &removePair);
if (pairPtr == NULL) {
return FALSE;
}
bool_t status = TMLIST_REMOVE(chainPtr, &removePair);
assert(status);
TMPAIR_FREE(pairPtr);
#ifdef HASHTABLE_SIZE_FIELD
TM_SHARED_WRITE(hashtablePtr->size
(long)TM_SHARED_READ(hashtablePtr->size)-1);
assert(hashtablePtr->size >= 0);
#endif
return TRUE;
}
void
func_count (void* argPtr)
{
TM_THREAD_ENTER();
while (1) {
int stop_counting = 0;
//pair_t* coordinatePairPtr;
TM_BEGIN();
long local_counter = (long)TM_SHARED_READ(my_counter);
local_counter++;
if(local_counter > max_count)
stop_counting = 1;
TM_SHARED_WRITE(my_counter, local_counter);
TM_END();
//pthread_yield();
if (stop_counting == 1) {
break;
}
}//end of while
TM_THREAD_EXIT();
}
/* =============================================================================
* customer_free
* =============================================================================
*/
void
customer_free (TM_ARGDECL customer_t* customerPtr)
{
list_t* reservationInfoListPtr =
(list_t*)TM_SHARED_READ(customerPtr->reservationInfoListPtr);
TMLIST_FREE(reservationInfoListPtr);
TM_FREE(customerPtr);
}
/* =============================================================================
* TMheapify
* =============================================================================
*/
TM_SAFE
void
TMheapify ( heap_t* heapPtr, long startIndex)
{
void** elements = (void**)TM_SHARED_READ_P(heapPtr->elements);
//long (*compare)(const void*, const void*) TM_IFUNC_DECL = heapPtr->compare;
long (*compare)(const void*, const void*) TM_SAFE = heapPtr->compare;
long size = (long)TM_SHARED_READ(heapPtr->size);
long index = startIndex;
while (1) {
long leftIndex = LEFT_CHILD(index);
long rightIndex = RIGHT_CHILD(index);
long maxIndex = -1;
if (leftIndex <= size)
{
long ret;
void *e1, *e2;
e1 = (void*)TM_SHARED_READ_P(elements[leftIndex]);
e2 = (void*)TM_SHARED_READ_P(elements[index]);
TM_IFUNC_CALL2(ret, compare, e1, e2);
if (ret > 0)
maxIndex = leftIndex;
else
maxIndex = index;
} else {
maxIndex = index;
}
if (rightIndex <= size)
{
long ret;
void *e1, *e2;
e1 = (void*)TM_SHARED_READ_P(elements[rightIndex]);
e2 = (void*)TM_SHARED_READ_P(elements[maxIndex]);
TM_IFUNC_CALL2(ret, compare, e1, e2);
if (ret > 0)
maxIndex = rightIndex;
}
if (maxIndex == index) {
break;
} else {
void* tmpPtr = (void*)TM_SHARED_READ_P(elements[index]);
TM_SHARED_WRITE_P(elements[index],
(void*)TM_SHARED_READ_P(elements[maxIndex]));
TM_SHARED_WRITE_P(elements[maxIndex], tmpPtr);
index = maxIndex;
}
}
}
/* =============================================================================
* TMqueue_pop
* =============================================================================
*/
void*
TMqueue_pop (TM_ARGDECL queue_t* queuePtr)
{
long pop = (long)TM_SHARED_READ(queuePtr->pop);
long push = (long)TM_SHARED_READ(queuePtr->push);
long capacity = (long)TM_SHARED_READ(queuePtr->capacity);
long newPop = (pop + 1) % capacity;
if (newPop == push) {
return NULL;
}
void** elements = (void**)TM_SHARED_READ_P(queuePtr->elements);
void* dataPtr = (void*)TM_SHARED_READ_P(elements[newPop]);
TM_SHARED_WRITE(queuePtr->pop, newPop);
return dataPtr;
}
/* =============================================================================
* manager_deleteFlight
* -- Delete an entire flight
* -- Fails if customer has reservation on this flight
* -- Returns TRUE on success, else FALSE
* =============================================================================
*/
bool_t
manager_deleteFlight (TM_ARGDECL manager_t* managerPtr, long flightId)
{
reservation_t* reservationPtr;
reservationPtr = (reservation_t*)TMMAP_FIND(managerPtr->flightTablePtr, flightId);
if (reservationPtr == NULL) {
return FALSE;
}
if ((long)TM_SHARED_READ(reservationPtr->numUsed) > 0) {
return FALSE; /* somebody has a reservation */
}
return addReservation(TM_ARG
managerPtr->flightTablePtr,
flightId,
-1*(long)TM_SHARED_READ(reservationPtr->numTotal),
-1 /* -1 keeps old price */);
}
/* =============================================================================
* reservation_addToTotal
* -- Adds if 'num' > 0, removes if 'num' < 0;
* -- Returns TRUE on success, else FALSE
* =============================================================================
*/
bool_t
reservation_addToTotal (TM_ARGDECL reservation_t* reservationPtr, int num)
{
#ifdef reservation2
return reservationPtr->reservation_addToTotal(TM_ARG num);
#else
int numFree = TM_SHARED_READ(reservationPtr->numFree);
if (numFree + num < 0) {
return FALSE;
}
int numTotal = TM_SHARED_READ(reservationPtr->numTotal);
TM_SHARED_WRITE(reservationPtr->numTotal, numTotal + num);
TM_SHARED_WRITE(reservationPtr->numFree, numFree + num);
CHECK_RESERVATION(reservationPtr);
return TRUE;
#endif
}
/* =============================================================================
* reservation_cancel
* -- Returns TRUE on success, else FALSE
* =============================================================================
*/
bool_t
reservation_cancel (TM_ARGDECL reservation_t* reservationPtr)
{
#ifdef reservation2
return reservationPtr->reservation_cancel(TM_ARG_ALONE);
#else
int numUsed = TM_SHARED_READ(reservationPtr->numUsed);
if (numUsed < 1) {
return FALSE;
}
TM_SHARED_WRITE(reservationPtr->numUsed, numUsed-1);
TM_SHARED_WRITE(reservationPtr->numFree,
TM_SHARED_READ(reservationPtr->numFree)+1);
CHECK_RESERVATION(reservationPtr);
return TRUE;
#endif
}
/* =============================================================================
* checkReservation
* -- Check if consistent
* =============================================================================
*/
static void
checkReservation (TM_ARGDECL reservation_t* reservationPtr)
{
int numUsed = (int)TM_SHARED_READ(reservationPtr->numUsed);
if (numUsed < 0) {
TM_RESTART();
}
int numFree = (int)TM_SHARED_READ(reservationPtr->numFree);
if (numFree < 0) {
TM_RESTART();
}
int numTotal = (int)TM_SHARED_READ(reservationPtr->numTotal);
if (numTotal < 0) {
TM_RESTART();
}
if ((numUsed + numFree) != numTotal) {
TM_RESTART();
}
}
/* =============================================================================
* queryNumFree
* -- Return numFree of a reservation, -1 if failure
* =============================================================================
*/
static long
queryNumFree (TM_ARGDECL MAP_T* tablePtr, long id)
{
long numFree = -1;
reservation_t* reservationPtr;
reservationPtr = (reservation_t*)TMMAP_FIND(tablePtr, id);
if (reservationPtr != NULL) {
numFree = (long)TM_SHARED_READ(reservationPtr->numFree);
}
return numFree;
}
/* =============================================================================
* queryPrice
* -- Return price of a reservation, -1 if failure
* =============================================================================
*/
static long
queryPrice (TM_ARGDECL MAP_T* tablePtr, long id)
{
long price = -1;
reservation_t* reservationPtr;
reservationPtr = (reservation_t*)TMMAP_FIND(tablePtr, id);
if (reservationPtr != NULL) {
price = (long)TM_SHARED_READ(reservationPtr->price);
}
return price;
}
/* =============================================================================
* customer_addReservationInfo
* -- Returns TRUE if success, else FALSE
* =============================================================================
*/
bool_t
customer_addReservationInfo (TM_ARGDECL
customer_t* customerPtr,
reservation_type_t type, long id, long price)
{
reservation_info_t* reservationInfoPtr;
reservationInfoPtr = RESERVATION_INFO_ALLOC(type, id, price);
assert(reservationInfoPtr != NULL);
list_t* reservationInfoListPtr =
(list_t*)TM_SHARED_READ(customerPtr->reservationInfoListPtr);
return TMLIST_INSERT(reservationInfoListPtr, (void*)reservationInfoPtr);
}
/* =============================================================================
* TMhashtable_getSize
* -- Returns number of elements in hash table
* =============================================================================
*/
long
TMhashtable_getSize (TM_ARGDECL hashtable_t* hashtablePtr)
{
#ifdef HASHTABLE_SIZE_FIELD
return (long)TM_SHARED_READ(hashtablePtr->size);
#else
long i;
long size = 0;
for (i = 0; i < hashtablePtr->numBucket; i++) {
size += TMLIST_GETSIZE(hashtablePtr->buckets[i]);
}
return size;
#endif
}
/* =============================================================================
* customer_getBill
* -- Returns total cost of reservations
* =============================================================================
*/
long
customer_getBill (TM_ARGDECL customer_t* customerPtr)
{
long bill = 0;
list_iter_t it;
list_t* reservationInfoListPtr =
(list_t*)TM_SHARED_READ(customerPtr->reservationInfoListPtr);
TMLIST_ITER_RESET(&it, reservationInfoListPtr);
while (TMLIST_ITER_HASNEXT(&it, reservationInfoListPtr)) {
reservation_info_t* reservationInfoPtr =
(reservation_info_t*)TMLIST_ITER_NEXT(&it, reservationInfoListPtr);
bill += reservationInfoPtr->price;
}
return bill;
}
/* =============================================================================
* TMhashtable_isEmpty
* =============================================================================
*/
bool_t
TMhashtable_isEmpty (TM_ARGDECL hashtable_t* hashtablePtr)
{
#ifdef HASHTABLE_SIZE_FIELD
return ((TM_SHARED_READ(hashtablePtr->size) == 0) ? TRUE : FALSE);
#else
long i;
for (i = 0; i < hashtablePtr->numBucket; i++) {
if (!TMLIST_ISEMPTY(hashtablePtr->buckets[i])) {
return FALSE;
}
}
return TRUE;
#endif
}
/* =============================================================================
* TMlist_remove
* -- Returns TRUE if successful, else FALSE
* =============================================================================
*/
bool_t
TMlist_remove (TM_ARGDECL list_t* listPtr, void* dataPtr)
{
list_node_t* prevPtr;
list_node_t* nodePtr;
prevPtr = TMfindPrevious(TM_ARG listPtr, dataPtr);
nodePtr = (list_node_t*)TM_SHARED_READ_P(prevPtr->nextPtr);
if ((nodePtr != NULL) &&
(listPtr->compare(nodePtr->dataPtr, dataPtr) == 0))
{
TM_SHARED_WRITE_P(prevPtr->nextPtr, TM_SHARED_READ_P(nodePtr->nextPtr));
TM_SHARED_WRITE_P(nodePtr->nextPtr, (struct list_node*)NULL);
TMfreeNode(TM_ARG nodePtr);
TM_SHARED_WRITE(listPtr->size, (TM_SHARED_READ(listPtr->size) - 1));
assert(listPtr->size >= 0);
return TRUE;
}
return FALSE;
}
/* =============================================================================
* reserve
* -- Customer is not allowed to reserve same (type, id) multiple times
* -- Returns TRUE on success, else FALSE
* =============================================================================
*/
static bool_t
reserve (TM_ARGDECL
MAP_T* tablePtr, MAP_T* customerTablePtr,
long customerId, long id, reservation_type_t type)
{
customer_t* customerPtr;
reservation_t* reservationPtr;
customerPtr = (customer_t*)TMMAP_FIND(customerTablePtr, customerId);
if (customerPtr == NULL) {
return FALSE;
}
reservationPtr = (reservation_t*)TMMAP_FIND(tablePtr, id);
if (reservationPtr == NULL) {
return FALSE;
}
if (!RESERVATION_MAKE(reservationPtr)) {
return FALSE;
}
if (!CUSTOMER_ADD_RESERVATION_INFO(
customerPtr,
type,
id,
(long)TM_SHARED_READ(reservationPtr->price)))
{
/* Undo previous successful reservation */
bool_t status = RESERVATION_CANCEL(reservationPtr);
if (status == FALSE) {
TM_RESTART();
}
return FALSE;
}
return TRUE;
}
/* =============================================================================
* TMlist_getSize
* -- Returns the size of the list
* =============================================================================
*/
long
TMlist_getSize (TM_ARGDECL list_t* listPtr)
{
return (long)TM_SHARED_READ(listPtr->size);
}
/* =============================================================================
* process
* =============================================================================
*/
void
process ()
{
TM_THREAD_ENTER();
heap_t* workHeapPtr = global_workHeapPtr;
mesh_t* meshPtr = global_meshPtr;
region_t* regionPtr;
long totalNumAdded = 0;
long numProcess = 0;
regionPtr = PREGION_ALLOC();
assert(regionPtr);
while (1) {
element_t* elementPtr;
AL_LOCK(0);
TM_BEGIN(0);
elementPtr = TMHEAP_REMOVE(workHeapPtr);
TM_END();
if (elementPtr == NULL) {
break;
}
bool_t isGarbage;
AL_LOCK(0);
TM_BEGIN(1);
isGarbage = TMELEMENT_ISGARBAGE(elementPtr);
TM_END();
if (isGarbage) {
/*
* Handle delayed deallocation
*/
PELEMENT_FREE(elementPtr);
continue;
}
long numAdded;
AL_LOCK(0);
TM_BEGIN(2);
PREGION_CLEARBAD(regionPtr);
numAdded = TMREGION_REFINE(regionPtr, elementPtr, meshPtr);
TM_END();
AL_LOCK(0);
TM_BEGIN(3);
TMELEMENT_SETISREFERENCED(elementPtr, FALSE);
isGarbage = TMELEMENT_ISGARBAGE(elementPtr);
TM_END();
if (isGarbage) {
/*
* Handle delayed deallocation
*/
PELEMENT_FREE(elementPtr);
}
totalNumAdded += numAdded;
AL_LOCK(0);
TM_BEGIN(4);
TMREGION_TRANSFERBAD(regionPtr, workHeapPtr);
TM_END();
numProcess++;
}
AL_LOCK(0);
TM_BEGIN(5);
TM_SHARED_WRITE(global_totalNumAdded,
TM_SHARED_READ(global_totalNumAdded) + totalNumAdded);
TM_SHARED_WRITE(global_numProcess,
TM_SHARED_READ(global_numProcess) + numProcess);
TM_END();
PREGION_FREE(regionPtr);
TM_THREAD_EXIT();
}
/* =============================================================================
* getStartLists
* =============================================================================
*/
void
getStartLists (void* argPtr)
{
TM_THREAD_ENTER();
graph* GPtr = ((getStartLists_arg_t*)argPtr)->GPtr;
edge** maxIntWtListPtr = ((getStartLists_arg_t*)argPtr)->maxIntWtListPtr;
long* maxIntWtListSize = ((getStartLists_arg_t*)argPtr)->maxIntWtListSize;
edge** soughtStrWtListPtr = ((getStartLists_arg_t*)argPtr)->soughtStrWtListPtr;
long* soughtStrWtListSize = ((getStartLists_arg_t*)argPtr)->soughtStrWtListSize;
long myId = thread_getId();
long numThread = thread_getNumThread();
/*
* Find Max Wt on each thread
*/
LONGINT_T maxWeight = 0;
long i;
long i_start;
long i_stop;
createPartition(0, GPtr->numEdges, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
if (GPtr->intWeight[i] > maxWeight) {
maxWeight = GPtr->intWeight[i];
}
}
AL_LOCK(0);
TM_BEGIN(9);
long tmp_maxWeight = (long)TM_SHARED_READ(global_maxWeight);
if (maxWeight > tmp_maxWeight) {
TM_SHARED_WRITE(global_maxWeight, maxWeight);
}
TM_END();
thread_barrier_wait();
maxWeight = global_maxWeight;
/*
* Create partial lists
*/
/*
* Allocate mem. for temp edge list for each thread
*/
long numTmpEdge = (5+ceil(1.5*(GPtr->numIntEdges)/MAX_INT_WEIGHT));
edge* tmpEdgeList = (edge*)P_MALLOC(numTmpEdge * sizeof(edge));
long i_edgeCounter = 0;
for (i = i_start; i < i_stop; i++) {
if (GPtr->intWeight[i] == maxWeight) {
/* Find the corresponding endVertex */
long j;
for (j = 0; j < GPtr->numDirectedEdges; j++) {
if (GPtr->paralEdgeIndex[j] > i) {
break;
}
}
tmpEdgeList[i_edgeCounter].endVertex = GPtr->outVertexList[j-1];
tmpEdgeList[i_edgeCounter].edgeNum = j-1;
long t;
for (t = 0; t < GPtr->numVertices; t++) {
if (GPtr->outVertexIndex[t] > j-1) {
break;
}
}
tmpEdgeList[i_edgeCounter].startVertex = t-1;
i_edgeCounter++;
}
}
/*
* Merge partial edge lists
*/
long* i_edgeStartCounter;
long* i_edgeEndCounter;
if (myId == 0) {
i_edgeStartCounter = (long*)P_MALLOC(numThread * sizeof(long));
assert(i_edgeStartCounter);
global_i_edgeStartCounter = i_edgeStartCounter;
i_edgeEndCounter = (long*)P_MALLOC(numThread * sizeof(long));
assert(i_edgeEndCounter);
global_i_edgeEndCounter = i_edgeEndCounter;
*maxIntWtListSize = 0;
}
thread_barrier_wait();
i_edgeStartCounter = global_i_edgeStartCounter;
i_edgeEndCounter = global_i_edgeEndCounter;
i_edgeEndCounter[myId] = i_edgeCounter;
i_edgeStartCounter[myId] = 0;
thread_barrier_wait();
if (myId == 0) {
for (i = 1; i < numThread; i++) {
i_edgeEndCounter[i] = i_edgeEndCounter[i-1] + i_edgeEndCounter[i];
i_edgeStartCounter[i] = i_edgeEndCounter[i-1];
}
}
*maxIntWtListSize += i_edgeCounter;
thread_barrier_wait();
edge* maxIntWtList;
if (myId == 0) {
P_FREE(*maxIntWtListPtr);
maxIntWtList = (edge*)P_MALLOC((*maxIntWtListSize) * sizeof(edge));
assert(maxIntWtList);
global_maxIntWtList = maxIntWtList;
}
thread_barrier_wait();
maxIntWtList = global_maxIntWtList;
for (i = i_edgeStartCounter[myId]; i<i_edgeEndCounter[myId]; i++) {
(maxIntWtList[i]).startVertex = tmpEdgeList[i-i_edgeStartCounter[myId]].startVertex;
(maxIntWtList[i]).endVertex = tmpEdgeList[i-i_edgeStartCounter[myId]].endVertex;
(maxIntWtList[i]).edgeNum = tmpEdgeList[i-i_edgeStartCounter[myId]].edgeNum;
}
if (myId == 0) {
*maxIntWtListPtr = maxIntWtList;
}
i_edgeCounter = 0;
createPartition(0, GPtr->numStrEdges, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
if (strncmp(GPtr->strWeight+i*MAX_STRLEN,
SOUGHT_STRING,
MAX_STRLEN) == 0)
{
/*
* Find the corresponding endVertex
*/
long t;
for (t = 0; t < GPtr->numEdges; t++) {
if (GPtr->intWeight[t] == -i) {
break;
}
}
long j;
for (j = 0; j < GPtr->numDirectedEdges; j++) {
if (GPtr->paralEdgeIndex[j] > t) {
break;
}
}
tmpEdgeList[i_edgeCounter].endVertex = GPtr->outVertexList[j-1];
tmpEdgeList[i_edgeCounter].edgeNum = j-1;
for (t = 0; t < GPtr->numVertices; t++) {
if (GPtr->outVertexIndex[t] > j-1) {
break;
}
}
tmpEdgeList[i_edgeCounter].startVertex = t-1;
i_edgeCounter++;
}
}
thread_barrier_wait();
i_edgeEndCounter[myId] = i_edgeCounter;
i_edgeStartCounter[myId] = 0;
if (myId == 0) {
*soughtStrWtListSize = 0;
}
thread_barrier_wait();
if (myId == 0) {
for (i = 1; i < numThread; i++) {
i_edgeEndCounter[i] = i_edgeEndCounter[i-1] + i_edgeEndCounter[i];
i_edgeStartCounter[i] = i_edgeEndCounter[i-1];
}
}
*soughtStrWtListSize += i_edgeCounter;
thread_barrier_wait();
edge* soughtStrWtList;
if (myId == 0) {
P_FREE(*soughtStrWtListPtr);
soughtStrWtList = (edge*)P_MALLOC((*soughtStrWtListSize) * sizeof(edge));
assert(soughtStrWtList);
global_soughtStrWtList = soughtStrWtList;
}
thread_barrier_wait();
soughtStrWtList = global_soughtStrWtList;
for (i = i_edgeStartCounter[myId]; i < i_edgeEndCounter[myId]; i++) {
(soughtStrWtList[i]).startVertex =
tmpEdgeList[i-i_edgeStartCounter[myId]].startVertex;
(soughtStrWtList[i]).endVertex =
tmpEdgeList[i-i_edgeStartCounter[myId]].endVertex;
(soughtStrWtList[i]).edgeNum =
tmpEdgeList[i-i_edgeStartCounter[myId]].edgeNum;
}
thread_barrier_wait();
if (myId == 0) {
*soughtStrWtListPtr = soughtStrWtList;
P_FREE(i_edgeStartCounter);
P_FREE(i_edgeEndCounter);
}
P_FREE(tmpEdgeList);
TM_THREAD_EXIT();
}
/* =============================================================================
* genScalData
* =============================================================================
*/
void
genScalData (void* argPtr)
{
TM_THREAD_ENTER();
graphSDG* SDGdataPtr = (graphSDG*)argPtr;
long myId = thread_getId();
long numThread = thread_getNumThread();
/*
* STEP 0: Create the permutations required to randomize the vertices
*/
random_t* stream = PRANDOM_ALLOC();
assert(stream);
PRANDOM_SEED(stream, myId);
ULONGINT_T* permV; /* the vars associated with the graph tuple */
if (myId == 0) {
permV = (ULONGINT_T*)P_MALLOC(TOT_VERTICES * sizeof(ULONGINT_T));
assert(permV);
global_permV = permV;
}
thread_barrier_wait();
permV = global_permV;
long i;
long i_start;
long i_stop;
createPartition(0, TOT_VERTICES, myId, numThread, &i_start, &i_stop);
/* Initialize the array */
for (i = i_start; i < i_stop; i++) {
permV[i] = i;
}
thread_barrier_wait();
for (i = i_start; i < i_stop; i++) {
long t1 = PRANDOM_GENERATE(stream);
long t = i + t1 % (TOT_VERTICES - i);
if (t != i) {
AL_LOCK(0);
TM_BEGIN();
long t2 = (long)TM_SHARED_READ(permV[t]);
TM_SHARED_WRITE(permV[t], TM_SHARED_READ(permV[i]));
TM_SHARED_WRITE(permV[i], t2);
TM_END();
}
}
/*
* STEP 1: Create Cliques
*/
long* cliqueSizes;
long estTotCliques = ceil(1.5 * TOT_VERTICES / ((1+MAX_CLIQUE_SIZE)/2));
/*
* Allocate mem for Clique array
* Estimate number of clique required and pad by 50%
*/
if (myId == 0) {
cliqueSizes = (long*)P_MALLOC(estTotCliques * sizeof(long));
assert(cliqueSizes);
global_cliqueSizes = cliqueSizes;
}
thread_barrier_wait();
cliqueSizes = global_cliqueSizes;
createPartition(0, estTotCliques, myId, numThread, &i_start, &i_stop);
/* Generate random clique sizes. */
for (i = i_start; i < i_stop; i++) {
cliqueSizes[i] = 1 + (PRANDOM_GENERATE(stream) % MAX_CLIQUE_SIZE);
}
thread_barrier_wait();
long totCliques = 0;
/*
* Allocate memory for cliqueList
*/
ULONGINT_T* lastVsInCliques;
ULONGINT_T* firstVsInCliques;
if (myId == 0) {
lastVsInCliques = (ULONGINT_T*)P_MALLOC(estTotCliques * sizeof(ULONGINT_T));
assert(lastVsInCliques);
global_lastVsInCliques = lastVsInCliques;
firstVsInCliques = (ULONGINT_T*)P_MALLOC(estTotCliques * sizeof(ULONGINT_T));
assert(firstVsInCliques);
global_firstVsInCliques = firstVsInCliques;
/*
* Sum up vertices in each clique to determine the lastVsInCliques array
*/
lastVsInCliques[0] = cliqueSizes[0] - 1;
for (i = 1; i < estTotCliques; i++) {
lastVsInCliques[i] = cliqueSizes[i] + lastVsInCliques[i-1];
if (lastVsInCliques[i] >= TOT_VERTICES-1) {
break;
}
}
totCliques = i + 1;
global_totCliques = totCliques;
/*
* Fix the size of the last clique
*/
cliqueSizes[totCliques-1] =
TOT_VERTICES - lastVsInCliques[totCliques-2] - 1;
lastVsInCliques[totCliques-1] = TOT_VERTICES - 1;
firstVsInCliques[0] = 0;
}
thread_barrier_wait();
lastVsInCliques = global_lastVsInCliques;
firstVsInCliques = global_firstVsInCliques;
totCliques = global_totCliques;
/* Compute start Vertices in cliques. */
createPartition(1, totCliques, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
firstVsInCliques[i] = lastVsInCliques[i-1] + 1;
}
#ifdef WRITE_RESULT_FILES
thread_barrier_wait();
/* Write the generated cliques to file for comparison with Kernel 4 */
if (myId == 0) {
FILE* outfp = fopen("cliques.txt", "w");
fprintf(outfp, "No. of cliques - %lu\n", totCliques);
for (i = 0; i < totCliques; i++) {
fprintf(outfp, "Clq %lu - ", i);
long j;
for (j = firstVsInCliques[i]; j <= lastVsInCliques[i]; j++) {
fprintf(outfp, "%lu ", permV[j]);
}
fprintf(outfp, "\n");
}
fclose(outfp);
}
thread_barrier_wait();
#endif
/*
* STEP 2: Create the edges within the cliques
*/
/*
* Estimate number of edges - using an empirical measure
*/
long estTotEdges;
if (SCALE >= 12) {
estTotEdges = ceil(((MAX_CLIQUE_SIZE-1) * TOT_VERTICES));
} else {
estTotEdges = ceil(1.2 * (((MAX_CLIQUE_SIZE-1)*TOT_VERTICES)
* ((1 + MAX_PARAL_EDGES)/2) + TOT_VERTICES*2));
}
/*
* Initialize edge counter
*/
long i_edgePtr = 0;
float p = PROB_UNIDIRECTIONAL;
/*
* Partial edgeLists
*/
ULONGINT_T* startV;
ULONGINT_T* endV;
if (numThread > 3) {
long numByte = 1.5 * (estTotEdges/numThread) * sizeof(ULONGINT_T);
startV = (ULONGINT_T*)P_MALLOC(numByte);
endV = (ULONGINT_T*)P_MALLOC(numByte);
} else {
long numByte = (estTotEdges/numThread) * sizeof(ULONGINT_T);
startV = (ULONGINT_T*)P_MALLOC(numByte);
endV = (ULONGINT_T*)P_MALLOC(numByte);
}
assert(startV);
assert(endV);
/*
* Tmp array to keep track of the no. of parallel edges in each direction
*/
ULONGINT_T** tmpEdgeCounter =
(ULONGINT_T**)P_MALLOC(MAX_CLIQUE_SIZE * sizeof(ULONGINT_T *));
assert(tmpEdgeCounter);
for (i = 0; i < MAX_CLIQUE_SIZE; i++) {
tmpEdgeCounter[i] =
(ULONGINT_T*)P_MALLOC(MAX_CLIQUE_SIZE * sizeof(ULONGINT_T));
assert(tmpEdgeCounter[i]);
}
/*
* Create edges in parallel
*/
long i_clique;
createPartition(0, totCliques, myId, numThread, &i_start, &i_stop);
for (i_clique = i_start; i_clique < i_stop; i_clique++) {
/*
* Get current clique parameters
*/
long i_cliqueSize = cliqueSizes[i_clique];
long i_firstVsInClique = firstVsInCliques[i_clique];
/*
* First create at least one edge between two vetices in a clique
*/
for (i = 0; i < i_cliqueSize; i++) {
long j;
for (j = 0; j < i; j++) {
float r = (float)(PRANDOM_GENERATE(stream) % 1000) / (float)1000;
if (r >= p) {
startV[i_edgePtr] = i + i_firstVsInClique;
endV[i_edgePtr] = j + i_firstVsInClique;
i_edgePtr++;
tmpEdgeCounter[i][j] = 1;
startV[i_edgePtr] = j + i_firstVsInClique;
endV[i_edgePtr] = i + i_firstVsInClique;
i_edgePtr++;
tmpEdgeCounter[j][i] = 1;
} else if (r >= 0.5) {
startV[i_edgePtr] = i + i_firstVsInClique;
endV[i_edgePtr] = j + i_firstVsInClique;
i_edgePtr++;
tmpEdgeCounter[i][j] = 1;
tmpEdgeCounter[j][i] = 0;
} else {
startV[i_edgePtr] = j + i_firstVsInClique;
endV[i_edgePtr] = i + i_firstVsInClique;
i_edgePtr++;
tmpEdgeCounter[j][i] = 1;
tmpEdgeCounter[i][j] = 0;
}
} /* for j */
} /* for i */
if (i_cliqueSize != 1) {
long randNumEdges = (long)(PRANDOM_GENERATE(stream)
% (2*i_cliqueSize*MAX_PARAL_EDGES));
long i_paralEdge;
for (i_paralEdge = 0; i_paralEdge < randNumEdges; i_paralEdge++) {
i = (PRANDOM_GENERATE(stream) % i_cliqueSize);
long j = (PRANDOM_GENERATE(stream) % i_cliqueSize);
if ((i != j) && (tmpEdgeCounter[i][j] < MAX_PARAL_EDGES)) {
float r = (float)(PRANDOM_GENERATE(stream) % 1000) / (float)1000;
if (r >= p) {
/* Copy to edge structure. */
startV[i_edgePtr] = i + i_firstVsInClique;
endV[i_edgePtr] = j + i_firstVsInClique;
i_edgePtr++;
tmpEdgeCounter[i][j]++;
}
}
}
}
} /* for i_clique */
for (i = 0; i < MAX_CLIQUE_SIZE; i++) {
P_FREE(tmpEdgeCounter[i]);
}
P_FREE(tmpEdgeCounter);
/*
* Merge partial edge lists
*/
ULONGINT_T* i_edgeStartCounter;
ULONGINT_T* i_edgeEndCounter;
if (myId == 0) {
i_edgeStartCounter = (ULONGINT_T*)P_MALLOC(numThread * sizeof(ULONGINT_T));
assert(i_edgeStartCounter);
global_i_edgeStartCounter = i_edgeStartCounter;
i_edgeEndCounter = (ULONGINT_T*)P_MALLOC(numThread * sizeof(ULONGINT_T));
assert(i_edgeEndCounter);
global_i_edgeEndCounter = i_edgeEndCounter;
}
thread_barrier_wait();
i_edgeStartCounter = global_i_edgeStartCounter;
i_edgeEndCounter = global_i_edgeEndCounter;
i_edgeEndCounter[myId] = i_edgePtr;
i_edgeStartCounter[myId] = 0;
thread_barrier_wait();
if (myId == 0) {
for (i = 1; i < numThread; i++) {
i_edgeEndCounter[i] = i_edgeEndCounter[i-1] + i_edgeEndCounter[i];
i_edgeStartCounter[i] = i_edgeEndCounter[i-1];
}
}
AL_LOCK(0);
TM_BEGIN();
TM_SHARED_WRITE(global_edgeNum,
((long)TM_SHARED_READ(global_edgeNum) + i_edgePtr));
TM_END();
thread_barrier_wait();
long edgeNum = global_edgeNum;
/*
* Initialize edge list arrays
*/
ULONGINT_T* startVertex;
ULONGINT_T* endVertex;
if (myId == 0) {
if (SCALE < 10) {
long numByte = 2 * edgeNum * sizeof(ULONGINT_T);
startVertex = (ULONGINT_T*)P_MALLOC(numByte);
endVertex = (ULONGINT_T*)P_MALLOC(numByte);
} else {
long numByte = (edgeNum + MAX_PARAL_EDGES * TOT_VERTICES)
* sizeof(ULONGINT_T);
startVertex = (ULONGINT_T*)P_MALLOC(numByte);
endVertex = (ULONGINT_T*)P_MALLOC(numByte);
}
assert(startVertex);
assert(endVertex);
global_startVertex = startVertex;
global_endVertex = endVertex;
}
thread_barrier_wait();
startVertex = global_startVertex;
endVertex = global_endVertex;
for (i = i_edgeStartCounter[myId]; i < i_edgeEndCounter[myId]; i++) {
startVertex[i] = startV[i-i_edgeStartCounter[myId]];
endVertex[i] = endV[i-i_edgeStartCounter[myId]];
}
ULONGINT_T numEdgesPlacedInCliques = edgeNum;
thread_barrier_wait();
/*
* STEP 3: Connect the cliques
*/
i_edgePtr = 0;
p = PROB_INTERCL_EDGES;
/*
* Generating inter-clique edges as given in the specs
*/
createPartition(0, TOT_VERTICES, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
ULONGINT_T tempVertex1 = i;
long h = totCliques;
long l = 0;
long t = -1;
while (h - l > 1) {
long m = (h + l) / 2;
if (tempVertex1 >= firstVsInCliques[m]) {
l = m;
} else {
if ((tempVertex1 < firstVsInCliques[m]) && (m > 0)) {
if (tempVertex1 >= firstVsInCliques[m-1]) {
t = m - 1;
break;
} else {
h = m;
}
}
}
}
if (t == -1) {
long m;
for (m = (l + 1); m < h; m++) {
if (tempVertex1<firstVsInCliques[m]) {
break;
}
}
t = m-1;
}
long t1 = firstVsInCliques[t];
ULONGINT_T d;
for (d = 1, p = PROB_INTERCL_EDGES; d < TOT_VERTICES; d *= 2, p /= 2) {
float r = (float)(PRANDOM_GENERATE(stream) % 1000) / (float)1000;
if (r <= p) {
ULONGINT_T tempVertex2 = (i+d) % TOT_VERTICES;
h = totCliques;
l = 0;
t = -1;
while (h - l > 1) {
long m = (h + l) / 2;
if (tempVertex2 >= firstVsInCliques[m]) {
l = m;
} else {
if ((tempVertex2 < firstVsInCliques[m]) && (m > 0)) {
if (firstVsInCliques[m-1] <= tempVertex2) {
t = m - 1;
break;
} else {
h = m;
}
}
}
}
if (t == -1) {
long m;
for (m = (l + 1); m < h; m++) {
if (tempVertex2 < firstVsInCliques[m]) {
break;
}
}
t = m - 1;
}
long t2 = firstVsInCliques[t];
if (t1 != t2) {
long randNumEdges =
PRANDOM_GENERATE(stream) % MAX_PARAL_EDGES + 1;
long j;
for (j = 0; j < randNumEdges; j++) {
startV[i_edgePtr] = tempVertex1;
endV[i_edgePtr] = tempVertex2;
i_edgePtr++;
}
}
} /* r <= p */
float r0 = (float)(PRANDOM_GENERATE(stream) % 1000) / (float)1000;
if ((r0 <= p) && (i-d>=0)) {
ULONGINT_T tempVertex2 = (i-d) % TOT_VERTICES;
h = totCliques;
l = 0;
t = -1;
while (h - l > 1) {
long m = (h + l) / 2;
if (tempVertex2 >= firstVsInCliques[m]) {
l = m;
} else {
if ((tempVertex2 < firstVsInCliques[m]) && (m > 0)) {
if (firstVsInCliques[m-1] <= tempVertex2) {
t = m - 1;
break;
} else {
h = m;
}
}
}
}
if (t == -1) {
long m;
for (m = (l + 1); m < h; m++) {
if (tempVertex2 < firstVsInCliques[m]) {
break;
}
}
t = m - 1;
}
long t2 = firstVsInCliques[t];
if (t1 != t2) {
long randNumEdges =
PRANDOM_GENERATE(stream) % MAX_PARAL_EDGES + 1;
long j;
for (j = 0; j < randNumEdges; j++) {
startV[i_edgePtr] = tempVertex1;
endV[i_edgePtr] = tempVertex2;
i_edgePtr++;
}
}
} /* r0 <= p && (i-d) > 0 */
} /* for d, p */
} /* for i */
i_edgeEndCounter[myId] = i_edgePtr;
i_edgeStartCounter[myId] = 0;
if (myId == 0) {
global_edgeNum = 0;
}
thread_barrier_wait();
if (myId == 0) {
for (i = 1; i < numThread; i++) {
i_edgeEndCounter[i] = i_edgeEndCounter[i-1] + i_edgeEndCounter[i];
i_edgeStartCounter[i] = i_edgeEndCounter[i-1];
}
}
AL_LOCK(0);
TM_BEGIN();
TM_SHARED_WRITE(global_edgeNum,
((long)TM_SHARED_READ(global_edgeNum) + i_edgePtr));
TM_END();
thread_barrier_wait();
edgeNum = global_edgeNum;
ULONGINT_T numEdgesPlacedOutside = global_edgeNum;
for (i = i_edgeStartCounter[myId]; i < i_edgeEndCounter[myId]; i++) {
startVertex[i+numEdgesPlacedInCliques] = startV[i-i_edgeStartCounter[myId]];
endVertex[i+numEdgesPlacedInCliques] = endV[i-i_edgeStartCounter[myId]];
}
thread_barrier_wait();
ULONGINT_T numEdgesPlaced = numEdgesPlacedInCliques + numEdgesPlacedOutside;
if (myId == 0) {
SDGdataPtr->numEdgesPlaced = numEdgesPlaced;
printf("Finished generating edges\n");
printf("No. of intra-clique edges - %lu\n", numEdgesPlacedInCliques);
printf("No. of inter-clique edges - %lu\n", numEdgesPlacedOutside);
printf("Total no. of edges - %lu\n", numEdgesPlaced);
P_FREE(i_edgeStartCounter);
P_FREE(i_edgeEndCounter);
P_FREE(cliqueSizes);
P_FREE(firstVsInCliques);
P_FREE(lastVsInCliques);
}
thread_barrier_wait();
P_FREE(startV);
P_FREE(endV);
/*
* STEP 4: Generate edge weights
*/
if (myId == 0) {
SDGdataPtr->intWeight =
(LONGINT_T*)P_MALLOC(numEdgesPlaced * sizeof(LONGINT_T));
assert(SDGdataPtr->intWeight);
}
thread_barrier_wait();
p = PERC_INT_WEIGHTS;
ULONGINT_T numStrWtEdges = 0;
createPartition(0, numEdgesPlaced, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
float r = (float)(PRANDOM_GENERATE(stream) % 1000) / (float)1000;
if (r <= p) {
SDGdataPtr->intWeight[i] =
1 + (PRANDOM_GENERATE(stream) % (MAX_INT_WEIGHT-1));
} else {
SDGdataPtr->intWeight[i] = -1;
numStrWtEdges++;
}
}
thread_barrier_wait();
if (myId == 0) {
long t = 0;
for (i = 0; i < numEdgesPlaced; i++) {
if (SDGdataPtr->intWeight[i] < 0) {
SDGdataPtr->intWeight[i] = -t;
t++;
}
}
}
AL_LOCK(0);
TM_BEGIN();
TM_SHARED_WRITE(global_numStrWtEdges,
((long)TM_SHARED_READ(global_numStrWtEdges) + numStrWtEdges));
TM_END();
thread_barrier_wait();
numStrWtEdges = global_numStrWtEdges;
if (myId == 0) {
SDGdataPtr->strWeight =
(char*)P_MALLOC(numStrWtEdges * MAX_STRLEN * sizeof(char));
assert(SDGdataPtr->strWeight);
}
thread_barrier_wait();
createPartition(0, numEdgesPlaced, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
if (SDGdataPtr->intWeight[i] <= 0) {
long j;
for (j = 0; j < MAX_STRLEN; j++) {
SDGdataPtr->strWeight[(-SDGdataPtr->intWeight[i])*MAX_STRLEN+j] =
(char) (1 + PRANDOM_GENERATE(stream) % 127);
}
}
}
/*
* Choose SOUGHT STRING randomly if not assigned
*/
if (myId == 0) {
if (strlen(SOUGHT_STRING) != MAX_STRLEN) {
SOUGHT_STRING = (char*)P_MALLOC(MAX_STRLEN * sizeof(char));
assert(SOUGHT_STRING);
}
long t = PRANDOM_GENERATE(stream) % numStrWtEdges;
long j;
for (j = 0; j < MAX_STRLEN; j++) {
SOUGHT_STRING[j] =
(char) ((long) SDGdataPtr->strWeight[t*MAX_STRLEN+j]);
}
}
thread_barrier_wait();
/*
* STEP 5: Permute Vertices
*/
for (i = i_start; i < i_stop; i++) {
startVertex[i] = permV[(startVertex[i])];
endVertex[i] = permV[(endVertex[i])];
}
thread_barrier_wait();
/*
* STEP 6: Sort Vertices
*/
/*
* Radix sort with StartVertex as primary key
*/
if (myId == 0) {
long numByte = numEdgesPlaced * sizeof(ULONGINT_T);
SDGdataPtr->startVertex = (ULONGINT_T*)P_MALLOC(numByte);
assert(SDGdataPtr->startVertex);
SDGdataPtr->endVertex = (ULONGINT_T*)P_MALLOC(numByte);
assert(SDGdataPtr->endVertex);
}
thread_barrier_wait();
all_radixsort_node_aux_s3(numEdgesPlaced,
startVertex,
SDGdataPtr->startVertex,
endVertex,
SDGdataPtr->endVertex);
thread_barrier_wait();
if (myId == 0) {
P_FREE(startVertex);
P_FREE(endVertex);
}
thread_barrier_wait();
if (SCALE < 12) {
/*
* Sort with endVertex as secondary key
*/
if (myId == 0) {
long i0 = 0;
long i1 = 0;
i = 0;
while (i < numEdgesPlaced) {
for (i = i0; i < numEdgesPlaced; i++) {
if (SDGdataPtr->startVertex[i] !=
SDGdataPtr->startVertex[i1])
{
i1 = i;
break;
}
}
long j;
for (j = i0; j < i1; j++) {
long k;
for (k = j+1; k < i1; k++) {
if (SDGdataPtr->endVertex[k] <
SDGdataPtr->endVertex[j])
{
long t = SDGdataPtr->endVertex[j];
SDGdataPtr->endVertex[j] = SDGdataPtr->endVertex[k];
SDGdataPtr->endVertex[k] = t;
}
}
}
if (SDGdataPtr->startVertex[i0] != TOT_VERTICES-1) {
i0 = i1;
} else {
long j;
for (j=i0; j<numEdgesPlaced; j++) {
long k;
for (k=j+1; k<numEdgesPlaced; k++) {
if (SDGdataPtr->endVertex[k] <
SDGdataPtr->endVertex[j])
{
long t = SDGdataPtr->endVertex[j];
SDGdataPtr->endVertex[j] = SDGdataPtr->endVertex[k];
SDGdataPtr->endVertex[k] = t;
}
}
}
}
} /* while i < numEdgesPlaced */
}
} else {
ULONGINT_T* tempIndex;
if (myId == 0) {
tempIndex =
(ULONGINT_T*)P_MALLOC((TOT_VERTICES + 1) * sizeof(ULONGINT_T));
assert(tempIndex);
global_tempIndex = tempIndex;
/*
* Update degree of each vertex
*/
tempIndex[0] = 0;
tempIndex[TOT_VERTICES] = numEdgesPlaced;
long i0 = 0;
for (i=0; i < TOT_VERTICES; i++) {
tempIndex[i+1] = tempIndex[i];
long j;
for (j = i0; j < numEdgesPlaced; j++) {
if (SDGdataPtr->startVertex[j] !=
SDGdataPtr->startVertex[i0])
{
if (SDGdataPtr->startVertex[i0] == i) {
tempIndex[i+1] = j;
i0 = j;
break;
}
}
}
}
}
thread_barrier_wait();
tempIndex = global_tempIndex;
/*
* Insertion sort for now, replace with something better later on
*/
#if 0
createPartition(0, TOT_VERTICES, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
long j;
for (j = tempIndex[i]; j < tempIndex[i+1]; j++) {
long k;
for (k = (j + 1); k < tempIndex[i+1]; k++) {
if (SDGdataPtr->endVertex[k] <
SDGdataPtr->endVertex[j])
{
long t = SDGdataPtr->endVertex[j];
SDGdataPtr->endVertex[j] = SDGdataPtr->endVertex[k];
SDGdataPtr->endVertex[k] = t;
}
}
}
}
#else
if (myId == 0) {
for (i = 0; i < TOT_VERTICES; i++) {
long j;
for (j = tempIndex[i]; j < tempIndex[i+1]; j++) {
long k;
for (k = (j + 1); k < tempIndex[i+1]; k++) {
if (SDGdataPtr->endVertex[k] <
SDGdataPtr->endVertex[j])
{
long t = SDGdataPtr->endVertex[j];
SDGdataPtr->endVertex[j] = SDGdataPtr->endVertex[k];
SDGdataPtr->endVertex[k] = t;
}
}
}
}
}
#endif
if (myId == 0) {
P_FREE(tempIndex);
}
} /* SCALE >= 12 */
PRANDOM_FREE(stream);
if (myId == 0) {
P_FREE(permV);
}
TM_THREAD_EXIT();
}
/* =============================================================================
* sequencer_run
* =============================================================================
*/
void
sequencer_run (void* argPtr)
{
TM_THREAD_ENTER();
long threadId = thread_getId();
sequencer_t* sequencerPtr = (sequencer_t*)argPtr;
hashtable_t* uniqueSegmentsPtr;
endInfoEntry_t* endInfoEntries;
table_t** startHashToConstructEntryTables;
constructEntry_t* constructEntries;
table_t* hashToConstructEntryTable;
uniqueSegmentsPtr = sequencerPtr->uniqueSegmentsPtr;
endInfoEntries = sequencerPtr->endInfoEntries;
startHashToConstructEntryTables = sequencerPtr->startHashToConstructEntryTables;
constructEntries = sequencerPtr->constructEntries;
hashToConstructEntryTable = sequencerPtr->hashToConstructEntryTable;
segments_t* segmentsPtr = sequencerPtr->segmentsPtr;
assert(segmentsPtr);
vector_t* segmentsContentsPtr = segmentsPtr->contentsPtr;
long numSegment = vector_getSize(segmentsContentsPtr);
long segmentLength = segmentsPtr->length;
long i;
long j;
long i_start;
long i_stop;
long numUniqueSegment;
long substringLength;
long entryIndex;
/*
* Step 1: Remove duplicate segments
*/
// #if defined(HTM) || defined(STM)
long numThread = thread_getNumThread();
{
/* Choose disjoint segments [i_start,i_stop) for each thread */
long partitionSize = (numSegment + numThread/2) / numThread; /* with rounding */
i_start = threadId * partitionSize;
if (threadId == (numThread - 1)) {
i_stop = numSegment;
} else {
i_stop = i_start + partitionSize;
}
}
// #else /* !(HTM || STM) */
// i_start = 0;
// i_stop = numSegment;
// #endif /* !(HTM || STM) */
for (i = i_start; i < i_stop; i+=CHUNK_STEP1) {
TM_BEGIN();
{
long ii;
long ii_stop = MIN(i_stop, (i+CHUNK_STEP1));
for (ii = i; ii < ii_stop; ii++) {
void* segment = vector_at(segmentsContentsPtr, ii);
TMHASHTABLE_INSERT(uniqueSegmentsPtr,
segment,
segment);
} /* ii */
}
TM_END();
}
thread_barrier_wait();
/*
* Step 2a: Iterate over unique segments and compute hashes.
*
* For the gene "atcg", the hashes for the end would be:
*
* "t", "tc", and "tcg"
*
* And for the gene "tcgg", the hashes for the start would be:
*
* "t", "tc", and "tcg"
*
* The names are "end" and "start" because if a matching pair is found,
* they are the substring of the end part of the pair and the start
* part of the pair respectively. In the above example, "tcg" is the
* matching substring so:
*
* (end) (start)
* a[tcg] + [tcg]g = a[tcg]g (overlap = "tcg")
*/
/* uniqueSegmentsPtr is constant now */
numUniqueSegment = hashtable_getSize(uniqueSegmentsPtr);
entryIndex = 0;
// #if defined(HTM) || defined(STM)
{
/* Choose disjoint segments [i_start,i_stop) for each thread */
long num = uniqueSegmentsPtr->numBucket;
long partitionSize = (num + numThread/2) / numThread; /* with rounding */
i_start = threadId * partitionSize;
if (threadId == (numThread - 1)) {
i_stop = num;
} else {
i_stop = i_start + partitionSize;
}
}
{
/* Approximate disjoint segments of element allocation in constructEntries */
long partitionSize = (numUniqueSegment + numThread/2) / numThread; /* with rounding */
entryIndex = threadId * partitionSize;
}
// #else /* !(HTM || STM) */
// i_start = 0;
// i_stop = uniqueSegmentsPtr->numBucket;
// entryIndex = 0;
//#endif /* !(HTM || STM) */
for (i = i_start; i < i_stop; i++) {
list_t* chainPtr = uniqueSegmentsPtr->buckets[i];
list_iter_t it;
list_iter_reset(&it, chainPtr);
while (list_iter_hasNext(&it, chainPtr)) {
char* segment =
(char*)((pair_t*)list_iter_next(&it, chainPtr))->firstPtr;
constructEntry_t* constructEntryPtr;
long j;
ulong_t startHash;
bool_t status;
/* Find an empty constructEntries entry */
TM_BEGIN();
while (((void*)TM_SHARED_READ_P(constructEntries[entryIndex].segment)) != NULL) {
entryIndex = (entryIndex + 1) % numUniqueSegment; /* look for empty */
}
constructEntryPtr = &constructEntries[entryIndex];
TM_SHARED_WRITE_P(constructEntryPtr->segment, segment);
TM_END();
entryIndex = (entryIndex + 1) % numUniqueSegment;
/*
* Save hashes (sdbm algorithm) of segment substrings
*
* endHashes will be computed for shorter substrings after matches
* have been made (in the next phase of the code). This will reduce
* the number of substrings for which hashes need to be computed.
*
* Since we can compute startHashes incrementally, we go ahead
* and compute all of them here.
*/
/* constructEntryPtr is local now */
constructEntryPtr->endHash = (ulong_t)hashString(&segment[1]);
startHash = 0;
for (j = 1; j < segmentLength; j++) {
startHash = (ulong_t)segment[j-1] +
(startHash << 6) + (startHash << 16) - startHash;
TM_BEGIN();
status = TMTABLE_INSERT(startHashToConstructEntryTables[j],
(ulong_t)startHash,
(void*)constructEntryPtr );
TM_END();
assert(status);
}
/*
* For looking up construct entries quickly
*/
startHash = (ulong_t)segment[j-1] +
(startHash << 6) + (startHash << 16) - startHash;
TM_BEGIN();
status = TMTABLE_INSERT(hashToConstructEntryTable,
(ulong_t)startHash,
(void*)constructEntryPtr);
TM_END();
assert(status);
}
}
thread_barrier_wait();
/*
* Step 2b: Match ends to starts by using hash-based string comparison.
*/
for (substringLength = segmentLength-1; substringLength > 0; substringLength--) {
table_t* startHashToConstructEntryTablePtr =
startHashToConstructEntryTables[substringLength];
list_t** buckets = startHashToConstructEntryTablePtr->buckets;
long numBucket = startHashToConstructEntryTablePtr->numBucket;
long index_start;
long index_stop;
// #if defined(HTM) || defined(STM)
{
/* Choose disjoint segments [index_start,index_stop) for each thread */
long partitionSize = (numUniqueSegment + numThread/2) / numThread; /* with rounding */
index_start = threadId * partitionSize;
if (threadId == (numThread - 1)) {
index_stop = numUniqueSegment;
} else {
index_stop = index_start + partitionSize;
}
}
// #else /* !(HTM || STM) */
// index_start = 0;
// index_stop = numUniqueSegment;
//#endif /* !(HTM || STM) */
/* Iterating over disjoint itervals in the range [0, numUniqueSegment) */
for (entryIndex = index_start;
entryIndex < index_stop;
entryIndex += endInfoEntries[entryIndex].jumpToNext)
{
if (!endInfoEntries[entryIndex].isEnd) {
continue;
}
/* ConstructEntries[entryIndex] is local data */
constructEntry_t* endConstructEntryPtr =
&constructEntries[entryIndex];
char* endSegment = endConstructEntryPtr->segment;
ulong_t endHash = endConstructEntryPtr->endHash;
list_t* chainPtr = buckets[endHash % numBucket]; /* buckets: constant data */
list_iter_t it;
list_iter_reset(&it, chainPtr);
/* Linked list at chainPtr is constant */
while (list_iter_hasNext(&it, chainPtr)) {
constructEntry_t* startConstructEntryPtr =
(constructEntry_t*)list_iter_next(&it, chainPtr);
char* startSegment = startConstructEntryPtr->segment;
long newLength = 0;
/* endConstructEntryPtr is local except for properties startPtr/endPtr/length */
TM_BEGIN();
/* Check if matches */
if (TM_SHARED_READ(startConstructEntryPtr->isStart) &&
(TM_SHARED_READ_P(endConstructEntryPtr->startPtr) != startConstructEntryPtr) &&
(strncmp(startSegment,
&endSegment[segmentLength - substringLength],
substringLength) == 0))
{
TM_SHARED_WRITE(startConstructEntryPtr->isStart, FALSE);
constructEntry_t* startConstructEntry_endPtr;
constructEntry_t* endConstructEntry_startPtr;
/* Update endInfo (appended something so no longer end) */
TM_LOCAL_WRITE(endInfoEntries[entryIndex].isEnd, FALSE);
/* Update segment chain construct info */
startConstructEntry_endPtr =
(constructEntry_t*)TM_SHARED_READ_P(startConstructEntryPtr->endPtr);
endConstructEntry_startPtr =
(constructEntry_t*)TM_SHARED_READ_P(endConstructEntryPtr->startPtr);
assert(startConstructEntry_endPtr);
assert(endConstructEntry_startPtr);
TM_SHARED_WRITE_P(startConstructEntry_endPtr->startPtr,
endConstructEntry_startPtr);
TM_LOCAL_WRITE_P(endConstructEntryPtr->nextPtr,
startConstructEntryPtr);
TM_SHARED_WRITE_P(endConstructEntry_startPtr->endPtr,
startConstructEntry_endPtr);
TM_SHARED_WRITE(endConstructEntryPtr->overlap, substringLength);
newLength = (long)TM_SHARED_READ(endConstructEntry_startPtr->length) +
(long)TM_SHARED_READ(startConstructEntryPtr->length) -
substringLength;
TM_SHARED_WRITE(endConstructEntry_startPtr->length, newLength);
} /* if (matched) */
TM_END();
if (!endInfoEntries[entryIndex].isEnd) { /* if there was a match */
break;
}
} /* iterate over chain */
} /* for (endIndex < numUniqueSegment) */
thread_barrier_wait();
/*
* Step 2c: Update jump values and hashes
*
* endHash entries of all remaining ends are updated to the next
* substringLength. Additionally jumpToNext entries are updated such
* that they allow to skip non-end entries. Currently this is sequential
* because parallelization did not perform better.
. */
if (threadId == 0) {
if (substringLength > 1) {
long index = segmentLength - substringLength + 1;
/* initialization if j and i: with i being the next end after j=0 */
for (i = 1; !endInfoEntries[i].isEnd; i+=endInfoEntries[i].jumpToNext) {
/* find first non-null */
}
/* entry 0 is handled seperately from the loop below */
endInfoEntries[0].jumpToNext = i;
if (endInfoEntries[0].isEnd) {
constructEntry_t* constructEntryPtr = &constructEntries[0];
char* segment = constructEntryPtr->segment;
constructEntryPtr->endHash = (ulong_t)hashString(&segment[index]);
}
/* Continue scanning (do not reset i) */
for (j = 0; i < numUniqueSegment; i+=endInfoEntries[i].jumpToNext) {
if (endInfoEntries[i].isEnd) {
constructEntry_t* constructEntryPtr = &constructEntries[i];
char* segment = constructEntryPtr->segment;
constructEntryPtr->endHash = (ulong_t)hashString(&segment[index]);
endInfoEntries[j].jumpToNext = MAX(1, (i - j));
j = i;
}
}
endInfoEntries[j].jumpToNext = i - j;
}
}
thread_barrier_wait();
} /* for (substringLength > 0) */
thread_barrier_wait();
/*
* Step 3: Build sequence string
*/
if (threadId == 0) {
long totalLength = 0;
for (i = 0; i < numUniqueSegment; i++) {
constructEntry_t* constructEntryPtr = &constructEntries[i];
if (constructEntryPtr->isStart) {
totalLength += constructEntryPtr->length;
}
}
sequencerPtr->sequence = (char*)P_MALLOC((totalLength+1) * sizeof(char));
char* sequence = sequencerPtr->sequence;
assert(sequence);
char* copyPtr = sequence;
long sequenceLength = 0;
for (i = 0; i < numUniqueSegment; i++) {
constructEntry_t* constructEntryPtr = &constructEntries[i];
/* If there are several start segments, we append in arbitrary order */
if (constructEntryPtr->isStart) {
long newSequenceLength = sequenceLength + constructEntryPtr->length;
assert( newSequenceLength <= totalLength );
copyPtr = sequence + sequenceLength;
sequenceLength = newSequenceLength;
do {
long numChar = segmentLength - constructEntryPtr->overlap;
if ((copyPtr + numChar) > (sequence + newSequenceLength)) {
TM_PRINT0("ERROR: sequence length != actual length\n");
break;
}
memcpy(copyPtr,
constructEntryPtr->segment,
(numChar * sizeof(char)));
copyPtr += numChar;
} while ((constructEntryPtr = constructEntryPtr->nextPtr) != NULL);
assert(copyPtr <= (sequence + sequenceLength));
}
}
assert(sequence != NULL);
sequence[sequenceLength] = '\0';
}
TM_THREAD_EXIT();
}
/* =============================================================================
* cutClusters
* =============================================================================
*/
void
cutClusters (void* argPtr)
{
TM_THREAD_ENTER();
graph* GPtr = (graph*)argPtr;
long myId = thread_getId();
long numThread = thread_getNumThread();
/*
* Sort the vertex list by their degree
*/
ULONGINT_T* Index;
ULONGINT_T* neighbourArray;
ULONGINT_T* IndexSorted;
ULONGINT_T* neighbourArraySorted;
if (myId == 0) {
long numByte = GPtr->numVertices * sizeof(ULONGINT_T);
Index = (ULONGINT_T*)P_MALLOC(numByte);
assert(Index);
global_Index = Index;
neighbourArray = (ULONGINT_T*)P_MALLOC(numByte);
assert(neighbourArray);
global_neighbourArray = neighbourArray;
IndexSorted = (ULONGINT_T*)P_MALLOC(numByte);
assert(IndexSorted);
global_IndexSorted = IndexSorted;
neighbourArraySorted = (ULONGINT_T*)P_MALLOC(numByte);
assert(neighbourArraySorted);
global_neighbourArraySorted = neighbourArraySorted;
}
thread_barrier_wait();
Index = global_Index;
neighbourArray = global_neighbourArray;
IndexSorted = global_IndexSorted;
neighbourArraySorted = global_neighbourArraySorted;
long i;
long i_start;
long i_stop;
createPartition(0, GPtr->numVertices, myId, numThread, &i_start, &i_stop);
for (i = i_start; i < i_stop; i++) {
neighbourArray[i] = GPtr->inDegree[i] + GPtr->outDegree[i];
Index[i] = i;
}
thread_barrier_wait();
all_radixsort_node_aux_s3(GPtr->numVertices,
neighbourArray,
neighbourArraySorted,
Index,
IndexSorted);
thread_barrier_wait();
/*
* Global array to keep track of vertex status:
* -1 if a vertex hasn't been assigned to a cluster yet
* t if it belongs to a cluster; t = iteration*numThread + myId
*/
long* vStatus;
edge* pCutSet;
ULONGINT_T* startV;
ULONGINT_T* clusterSize;
if (myId == 0) {
P_FREE(Index);
P_FREE(neighbourArray);
vStatus = (long*)P_MALLOC(GPtr->numVertices * sizeof(long));
assert(vStatus);
global_vStatus = vStatus;
/*
* Allocate mem. for the cut set list
* Maintain local arrays initially and merge them in the end
*/
if (SCALE < 12) {
pCutSet =(edge*)P_MALLOC((1*(GPtr->numDirectedEdges)/numThread)
* sizeof(edge));
} else {
pCutSet = (edge*)P_MALLOC((0.2*(GPtr->numDirectedEdges)/numThread)
* sizeof(edge));
}
assert(pCutSet);
global_pCutSet = pCutSet;
/*
* Vertex to start from, on each thread
*/
startV = (ULONGINT_T*)P_MALLOC(numThread * sizeof(ULONGINT_T));
assert(startV);
global_startV = startV;
clusterSize = (ULONGINT_T*)P_MALLOC(numThread * sizeof(ULONGINT_T));
assert(clusterSize);
global_clusterSize = clusterSize;
}
thread_barrier_wait();
vStatus = global_vStatus;
pCutSet = global_pCutSet;
startV = global_startV;
clusterSize = global_clusterSize;
for (i = i_start; i < i_stop; i++) {
vStatus[i] = -1;
}
thread_barrier_wait();
ULONGINT_T verticesVisited = 0;
#ifdef WRITE_RESULT_FILES
FILE* outfp1 = NULL;
if (myId == 0) {
outfp1 = fopen("clusters.txt", "w");
fprintf(outfp1, "\nKernel 4 - Extracted Clusters\n");
}
#endif
long iter = 0;
ULONGINT_T currIndex = 0;
ULONGINT_T cutSetIndex = 0;
while (verticesVisited < GPtr->numVertices) {
/* Clear start vertex array */
startV[myId] = -1;
clusterSize[myId] = 0;
if (currIndex == GPtr->numVertices) {
currIndex = 0;
}
thread_barrier_wait();
/*
* Choose vertices to start from
* Done sequentially right now, can be parallelized
*/
if (myId == 0) {
long t;
for (t = 0; t < numThread; t++) {
long r;
for (r = currIndex; r < GPtr->numVertices; r++) {
if (vStatus[IndexSorted[GPtr->numVertices - r - 1]] == -1) {
startV[t] = IndexSorted[GPtr->numVertices - r - 1];
vStatus[startV[t]] = iter * numThread + t;
long j;
for (j = 0; j < GPtr->outDegree[startV[t]]; j++) {
long outVertexListIndex =
j+GPtr->outVertexIndex[startV[t]];
long vStatusIndex =
GPtr->outVertexList[outVertexListIndex];
if (vStatus[vStatusIndex] == -1) {
vStatus[vStatusIndex] = iter * numThread + t;
clusterSize[t]++;
}
}
for (j = 0; j < GPtr->inDegree[startV[t]]; j++) {
long inVertexIndex = j+GPtr->inVertexIndex[startV[t]];
long vStatusIndex = GPtr->inVertexList[inVertexIndex];
if (vStatus[vStatusIndex] == -1) {
vStatus[vStatusIndex] = iter * numThread + t;
clusterSize[t]++;
}
}
currIndex = r+1;
break;
}
}
}
}
thread_barrier_wait();
/*
* Determine clusters and cut sets in parallel
*/
i = startV[myId];
ULONGINT_T cliqueSize = 0;
/* If the thread has some vertex to start from */
if (i != -1) {
cliqueSize = 1;
/* clusterSize[myId] gives the no. of 'unassigned' vertices adjacent to the current vertex */
if ((clusterSize[myId] >= 0.6*(GPtr->inDegree[i]+GPtr->outDegree[i])) ||
((iter > (GPtr->numVertices)/(numThread*MAX_CLUSTER_SIZE)) &&
(clusterSize[myId] > 0)))
{
/*
* Most of the adjacent vertices are unassigned,
* should be able to extract a cluster easily
*/
/* Inspect adjacency list */
long j;
for (j = 0; j < GPtr->outDegree[i]; j++) {
ULONGINT_T clusterCounter = 0;
ULONGINT_T cutSetIndexPrev = cutSetIndex;
ULONGINT_T cutSetCounter = 0;
if (vStatus[GPtr->outVertexList[j+GPtr->outVertexIndex[i]]] ==
iter * numThread + myId)
{
long v = GPtr->outVertexList[j+GPtr->outVertexIndex[i]];
/*
* Inspect vertices adjacent to v and determine if it belongs
* to a cluster or not
*/
long k;
for (k = 0; k < GPtr->outDegree[v]; k++) {
long outVertexListIndex = k+GPtr->outVertexIndex[v];
long vStatusIndex = GPtr->outVertexList[outVertexListIndex];
if (vStatus[vStatusIndex] == (iter * numThread + myId)) {
clusterCounter++;
} else {
cutSetCounter++;
if (vStatus[vStatusIndex] == -1) {
/* Ensure that an edge is not added twice to the list */
pCutSet[cutSetIndex].startVertex = v;
pCutSet[cutSetIndex].endVertex = vStatusIndex;
cutSetIndex++;
}
}
}
if ((cutSetCounter >= clusterCounter) ||
((SCALE < 9) &&
(clusterCounter <= 2) &&
(GPtr->inDegree[v]+GPtr->outDegree[v] >
clusterCounter + cutSetCounter) &&
(clusterSize[myId] > clusterCounter + 2)) ||
((SCALE > 9) &&
(clusterCounter < 0.5*clusterSize[myId])))
{
/* v doesn't belong to this clique, free it */
vStatus[v] = -1;
/* Also add this edge to cutset list, removing previously added edges */
cutSetIndex = cutSetIndexPrev;
pCutSet[cutSetIndex].startVertex = i;
pCutSet[cutSetIndex].endVertex = v;
cutSetIndex++;
} else {
cliqueSize++;
/* Add edges in inVertexList also to cut Set */
for (k = 0; k < GPtr->inDegree[v]; k++) {
long inVertexListIndex = k+GPtr->inVertexIndex[v];
long vStatusIndex = GPtr->inVertexList[inVertexListIndex];
if (vStatus[vStatusIndex] == -1) {
pCutSet[cutSetIndex].startVertex = v;
pCutSet[cutSetIndex].endVertex = vStatusIndex;
cutSetIndex++;
}
}
}
}
}
/* Do the same for the implied edges too */
for (j = 0; j < GPtr->inDegree[i]; j++) {
ULONGINT_T clusterCounter = 0;
ULONGINT_T cutSetIndexPrev = cutSetIndex;
ULONGINT_T cutSetCounter = 0;
if (vStatus[GPtr->inVertexList[j+GPtr->inVertexIndex[i]]] ==
iter*numThread+myId)
{
long v = GPtr->inVertexList[j+GPtr->inVertexIndex[i]];
/* Inspect vertices adjacent to v and determine if it belongs to a cluster or not */
long k;
for (k = 0; k < GPtr->outDegree[v]; k++) {
long outVertexListIndex = k+GPtr->outVertexIndex[v];
long vStatusIndex = GPtr->outVertexList[outVertexListIndex];
if (vStatus[vStatusIndex] == iter*numThread+myId) {
clusterCounter++;
} else {
cutSetCounter++;
if (vStatus[vStatusIndex] == -1) {
/* To ensure that an edge is not added twice to the list */
pCutSet[cutSetIndex].startVertex = v;
pCutSet[cutSetIndex].endVertex = vStatusIndex;
cutSetIndex++;
}
}
}
if ((cutSetCounter >= clusterCounter) ||
((SCALE < 9) &&
(clusterCounter <= 2) &&
(GPtr->inDegree[v]+GPtr->outDegree[v] >
clusterCounter + cutSetCounter) &&
(clusterSize[myId] > clusterCounter + 2)) ||
((SCALE > 9) &&
(clusterCounter < 0.5*clusterSize[myId])))
{
/* v doesn't belong to this clique, free it */
vStatus[v] = -1;
cutSetIndex = cutSetIndexPrev;
pCutSet[cutSetIndex].startVertex = i;
pCutSet[cutSetIndex].endVertex = v;
cutSetIndex++;
} else {
cliqueSize++;
/* Add edges in inVertexList also to cut Set */
for (k = 0; k < GPtr->inDegree[v]; k++) {
long inVertexListIndex = k+GPtr->inVertexIndex[v];
long vStatusIndex = GPtr->inVertexList[inVertexListIndex];
if (vStatus[vStatusIndex] == -1) {
pCutSet[cutSetIndex].startVertex = v;
pCutSet[cutSetIndex].endVertex = vStatusIndex;
cutSetIndex++;
}
}
}
}
}
} /* i != -1 */
if (clusterSize[myId] == 0) {
/* Only one vertex in cluster */
cliqueSize = 1;
} else {
if ((clusterSize[myId] < 0.6*(GPtr->inDegree[i]+GPtr->outDegree[i])) &&
(iter <= GPtr->numVertices/(numThread*MAX_CLUSTER_SIZE)))
{
/* High perc. of intra-clique edges, do not commit clique */
cliqueSize = 0;
vStatus[i] = -1;
long j;
for (j=0; j<GPtr->outDegree[i]; j++) {
long outVertexListIndex = j+GPtr->outVertexIndex[i];
long vStatusIndex = GPtr->outVertexList[outVertexListIndex];
if (vStatus[vStatusIndex] == iter*numThread+myId) {
vStatus[vStatusIndex] = -1;
}
}
for (j=0; j<GPtr->inDegree[i]; j++) {
long inVertexListIndex = j+GPtr->inVertexIndex[i];
long vStatusIndex = GPtr->inVertexList[inVertexListIndex];
if (vStatus[vStatusIndex] == iter*numThread+myId) {
vStatus[vStatusIndex] = -1;
}
}
}
}
} /* if i != -1 */
if (myId == 0) {
global_cliqueSize = 0;
}
thread_barrier_wait();
#ifdef WRITE_RESULT_FILES
/* Print to results.clq file */
if (myId == 0) {
long t;
for (t = 0; t < numThread; t++) {
if (startV[t] != -1) {
if (vStatus[startV[t]] == iter*numThread+t) {
fprintf(outfp1, "%lu ", startV[t]);
long j;
for (j = 0; j < GPtr->outDegree[startV[t]]; j++) {
long outVertexListIndex = j+GPtr->outVertexIndex[startV[t]];
long vStatusIndex = GPtr->outVertexList[outVertexListIndex];
if (vStatus[vStatusIndex] == iter*numThread+t) {
fprintf(outfp1, "%lu ", vStatusIndex);
}
}
for (j = 0; j < GPtr->inDegree[startV[t]]; j++) {
long inVertexListIndex = j+GPtr->inVertexIndex[startV[t]];
long vStatusIndex = GPtr->inVertexList[inVertexListIndex];
if (vStatus[vStatusIndex] == iter*numThread+t) {
fprintf(outfp1, "%lu ", vStatusIndex);
}
}
fprintf(outfp1, "\n");
}
}
}
}
thread_barrier_wait();
#endif /* WRITE_RESULTS_FILE */
if (myId == 0) {
iter++;
global_iter = iter;
}
TM_BEGIN();
long tmp_cliqueSize = (long)TM_SHARED_READ(global_cliqueSize);
TM_SHARED_WRITE(global_cliqueSize, (tmp_cliqueSize + cliqueSize));
TM_END();
thread_barrier_wait();
iter = global_iter;
verticesVisited += global_cliqueSize;
if ((verticesVisited >= 0.95*GPtr->numVertices) ||
(iter > GPtr->numVertices/2))
{
break;
}
} /* while (verticesVisited < GPtr->numVertices) */
thread_barrier_wait();
#ifdef WRITE_RESULT_FILES
/* Take care of unmarked vertices */
if (myId == 0) {
if (verticesVisited < GPtr->numVertices) {
for(i = 0; i < GPtr->numVertices; i++) {
if (vStatus[i] == -1) {
vStatus[i] = iter*numThread+myId;
fprintf(outfp1, "%lu\n", i);
iter++;
}
}
}
}
thread_barrier_wait();
#endif
/*
* Merge partial Cutset Lists
*/
/* Temp vars for merging edge lists */
ULONGINT_T* edgeStartCounter;
ULONGINT_T* edgeEndCounter;
if (myId == 0) {
edgeStartCounter = (ULONGINT_T*)P_MALLOC(numThread * sizeof(ULONGINT_T));
assert(edgeStartCounter);
global_edgeStartCounter = edgeStartCounter;
edgeEndCounter = (ULONGINT_T*)P_MALLOC(numThread * sizeof(ULONGINT_T));
assert(edgeEndCounter);
global_edgeEndCounter = edgeEndCounter;
}
thread_barrier_wait();
edgeStartCounter = global_edgeStartCounter;
edgeEndCounter = global_edgeEndCounter;
edgeEndCounter[myId] = cutSetIndex;
edgeStartCounter[myId] = 0;
thread_barrier_wait();
if (myId == 0) {
long t;
for (t = 1; t < numThread; t++) {
edgeEndCounter[t] = edgeEndCounter[t-1] + edgeEndCounter[t];
edgeStartCounter[t] = edgeEndCounter[t-1];
}
}
TM_BEGIN();
long tmp_cutSetIndex = (long)TM_SHARED_READ(global_cutSetIndex);
TM_SHARED_WRITE(global_cutSetIndex, (tmp_cutSetIndex + cutSetIndex));
TM_END();
thread_barrier_wait();
cutSetIndex = global_cutSetIndex;
ULONGINT_T cutSetCounter = cutSetIndex;
/* Data struct. for storing edgeCut */
edge* cutSet;
if (myId == 0) {
cutSet = (edge*)P_MALLOC(cutSetCounter * sizeof(edge));
assert(cutSet);
global_cutSet = cutSet;
}
thread_barrier_wait();
cutSet = global_cutSet;
long j;
for (j = edgeStartCounter[myId]; j < edgeEndCounter[myId]; j++) {
cutSet[j].startVertex = pCutSet[j-edgeStartCounter[myId]].startVertex;
cutSet[j].endVertex = pCutSet[j-edgeStartCounter[myId]].endVertex;
}
thread_barrier_wait();
#ifdef WRITE_RESULT_FILES
FILE* outfp2 = NULL;
if (myId == 0) {
outfp2 = fopen("edgeCut.txt", "w");
fprintf(outfp2, "\nEdges in Cut Set - \n");
for (i = 0; i < cutSetCounter; i++) {
fprintf(outfp2, "[%lu %lu] ",
cutSet[i].startVertex, cutSet[i].endVertex);
}
fclose(outfp2);
fclose(outfp1);
}
#endif
if (myId == 0) {
P_FREE(edgeStartCounter);
P_FREE(edgeEndCounter);
P_FREE(pCutSet);
P_FREE(IndexSorted);
P_FREE(neighbourArraySorted);
P_FREE(startV);
P_FREE(clusterSize);
P_FREE(cutSet);
P_FREE(vStatus);
}
TM_THREAD_EXIT();
}